@article{BUMI_1933_1_12_1_a7,
     author = {Salvemini, Tommaso},
     title = {Una formula relativa al {Calcolo} combinatorio},
     journal = {Bollettino della Unione matematica italiana},
     pages = {25--27},
     publisher = {mathdoc},
     volume = {Ser. 1, 12},
     number = {1},
     year = {1933},
     zbl = {0006.09812},
     language = {it},
     url = {http://geodesic.mathdoc.fr/item/BUMI_1933_1_12_1_a7/}
}